Was about time, but looks like as a result of MvC Infinite. Looked up some MvC Infinite and saw this:

From this short clip, the game seems to have moved more in the direction of the Street Fighter series than previous Marvel vs. Capcom games, which have tended to overflow with frenzied attack animations. The fighting system itself remains more mysterious. The matches in the game are fought 2v2 and there won’t be “assists” like in previous games, where characters could be called on-screen to deliver extra attacks.

Add in the fact most X-Men chars may be absent just sounds pretty terrible. Reason I liked MvC was the chaotic nature of it and I really dislike where SF has been going since SF4.